零模型 的英文怎麼說
中文拼音 [língmóxíng]
零模型
英文
null model-
The new projections put paid to some of the more alarmist scenarios raised by previous modelling, which have suggested that sea levels could rise by almost 1m over the same period
新的預測證實了許多由從前氣候模型所提出令人擔憂的方案，這些方案提出海岸線於二一零零年將上升大概一米。An analogic research on allocation of distribution center of retail e - business enterprise
零售型電子商務企業配送中心選址模擬研究The research of this paper includes three parts : the first, according to the statistical figures about the cargo transport in recent years, it analyzes cargo transport structure and the changing law and the internal reason of cargo transport. at the same time it analyzes and calculates the change of the arriving ships " structure for a systematic and full understand of the transport demands. the second, it make a scientific forecast of the port ' s future cargo capacity making use of the grey forecast system, which provides scientific basis for medium - long term development plan of the port ' s cargo handling capacity
本文研究的工作主要分三個部分：第一，根據張家港近年來有關貨物運輸的一些統計數據，對貨物運輸的結構和規模演變的規律及內在原因作一剖析，同時對到港船舶的結構變化進行預測，以求對運輸需求有一個系統全面的了解；第二，應用灰色預測系統對張家港港未來港口貨運吞吐量進行科學預測，為張家港港貨物裝卸能力規劃提供科學依據；應用物元分析技術對張家港港口的未來發展前景作出一定程度的分析、研究，找出張家港港口未來發展規劃的零散無序、不成系統的因素，總結前人經驗的基礎上採用綜合評判物元模型進行評判，在預測港口未來發展規劃是否科學實際上具有獨到見解。Data warehouse model design of retailed enterprise
商品零售企業數據倉庫模型設計The upper of the east model boundary remains constant head and the at the lower of it, there might exists a diffluent interface. so the east and west sides of the diffluent interface are respectively the drainage area of east and west karst - groundwater of yellow river
模型東界上部以黃河水位為第一類水頭已知邊界，下部必存在一個分流面，分流面東西兩側分別是黃河東西兩塊巖溶水的排泄區，該分流面可視為零流量邊界。This section essence shrinks the proportion is 1 : 43 simulation model vehicle the east wind - 11 short distance trajectory guided missile truck which develops voluntarily by our country, may mobile launch carries the system is a prototype, the chassis and the missile are the alloy manufacture, the missile may take out from the discharger or revolves along with the discharger to each angle, all vehicle doors may open, the rubber tire may rotate, the zero number of articles approaches 200
此款精縮比例為1 : 43的模擬模型車以我國自行發展、可機動發射的東風- 11短程彈道導彈車載系統為原型，車體及導彈為合金製造，導彈可以從發射架上取出或隨發射架旋轉至各個角度，所有車門均可打開，橡膠輪胎可以轉動，零件數接近200個。In proc. shape modeling international, genova, italy, june 7 - 9, 2004, pp. 7 - 18
文中所用的是機械零件的幾個cad模型，如剎車片車杠和卡車輪軸。In quantum chromodynamics ( qcd ), vacuum is not trivial, that is, vacuum carry quantum numbers. such a behavior is embodied by non - perturbative con - densates of quarks and gluons. since hadrons are excitations with respect to the vacuum, hadronic properties are ultimately related to properties of the vacuum. based on the vacuum structure, some hadron properties have been described well. in the low energy region, qcd has two very important proper - ties : chiral symmetry spontaneous breaking and confinement, which are closely related to the vacuum characteristics of qcd. much experiments and theoretical studies have shown that chiral symmetry spontaneous breaking is very important to understand the low - energy feature of the strongly interacting physics, and the quark condensates give an expression to chiral symmetry spontaneous breaking. according to goldstone ' s theorem, the goldstone bosons with zero mass will emerge as the chiral symmetry is spontaneously broken. there are two ways : inear and non - linear methods to carry out this constraint. in our paper, we will use the non - linear method
大量實驗和理論研究表明，手征對稱自發破缺對于理解低能強相互作用十分重要，而夸克凝聚又是導致手征對稱自發破缺的因素。按goldstone理論，伴隨手征對稱自發破缺應該會有零質量的goldstonebosons產生。而對于這一條件的實現有線性和非線性兩種方法本文將用非線性的方法將手征對稱自發破缺應用於su （ 3 ）模型即重子八重態，得出描述其強相互作用的手征對稱自發破缺lagrange密度。Secondly, the mixed h2 / h control is formulated as a game problem of incomplete information, a suboptimal 2x2 non - zero game model is constructed, where two channels are chose as players and h2 and h control are pure strategies, and an algorithm for mixed h2 / h control, which is based on the nash ' s bargaining theory, is derived to achieve the nash equilibrium point. finally, handling stability, ride comfort and steering handiness are related with vehicle suspension system and electrical power steering
其次，基於對策論把h _ 2 h _混合控制問題抽象為兩個對局者信息不完全情況下的非零和博弈模型，在以次優范數值構造的2x2非零和博弈模型中把兩類通道作為參加博弈的兩方，以h _ 2和h _控制方案作為兩種純策略，基於納什談判解原理設計出求解h _ 2 h _混合控制問題納什均衡點的演算法。Description and input of parts process database, and process deduce and illation etc. on a basis of analyzing turning parts " composing characteristic, adopting the form describes, the form factor ' s definition & coding for parts was realized, the information model of parts was formed, and the inputting design of parts information was accomplished
在對回轉體零件構成特性分析的基礎上，採用形面描述法的思想實現了零件形面要素的定義、編碼及其描述參數的確定。構造了零件信息模型，並以此模型為基礎完成了零件信息的輸入與存儲設計。提出基於關系數據庫的工藝決策模型，實現了工藝知識數據與工藝決策程序的相對分離。Based on the mathematical model developed by the paper, the trim calculations are carried out in the conditions that the example aircraft converts from helicopter to airplane mode in level flight with zero longitudinal acceleration and angular rate
本文依據所建立的樣例機縱向動力學模型，假定飛機在給定高度平飛，縱向加速度和角加速度均為零，完成過渡模式下的動力學配平。Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece
將液體火箭發動機燃燒室的冷卻通道設計為斜航線（等傾角螺旋線）槽形，可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大，所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點，提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜，手工編制數控加工程序難度大.為了解決數控加工程序的編制問題，研究了斜航線的數學模型，開發了自動編程軟體系統.使用該系統，可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大，加工難度大，是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗，研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術，已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用，驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功，對其他相似類型零件的加工亦具有參考意義This pin money is usually servered as the model of fundamental financial management for child
這些零用錢通常被用來作為孩子們早期學習理財的模型。All the work of this paper can be concluded as follows : 1 to research the ways of quota calculating 2 to build up the mode of data stream, analyze and introduce the work principle of system 3 to research of the structure of system and accomplish the function 4 to research the relationship between the system and tache of production and management, to research the pontes of system ( including man and computer, bom designing and maintenance system, capp, process aided designing system, others ) 5 to research the ways of software designing, database designing and accomplishment this system can finish the quota calculating and editing of parts and components, make requisition, examine and approve of the quota list and provide the data maintenance and management, and print various quota lists and classified collect lists
本文主要進行了以下幾方面的工作： 1 、材料消耗定額制訂方法的研究2 、建立數據信息流程模型、系統的工作原理的分析和介紹3 、計算機輔助材料定額系統結構的研究開發與系統功能實現的研究4 、在工藝數字化系統中材料消耗定額與其他生產管理環節和系統的關系（包括人機介面、 capp系統介面、工藝行程輔助編制系統介面及其它系統介面）的研究5 、軟體設計方法和系統數據庫設計和結構實現的研究系統可以實現零部件主要材料和車間輔助材料消耗定額的計算機輔助編制、修訂，修改通知單輔助生成。定額明細表瀏覽審批並提供定額制訂基礎數據維護管理功能，按要求列印輸出各種定額明細表和分類匯總表。For solving all these problems, through applying visualization technology of engineer design to the design of oil - feed unit, this paper constructs the entity model of oil - feed unit, establish the three - dimensional standard parts, implement the semi - automated and automated connect, and produce automatically the 2d or 3d part drawings. using this system the designer can observe and evaluate the space model of the unit, discuss the feasibility of space layout and the probable errors, so that the decision can be optimized and the competition of enterprise can be improved greatly
針對船舶供油單元設計、製造中的上述問題，本系統擬將工程設計可視化技術應用於船舶供油單元的設計，構造船舶供油單元的三維實體模型，建立三維標準件庫，實現管路的自動、半自動連接，自動生成管路的二維和三維零件圖，使得設計人員在設計階段就可觀察、評判單元的空間模型，直觀地探討空間布置的合理性和存在的問題，從而幫助決策的優化，提高企業競爭力。This text divides into five chapters altogether : chapter one in the introduction, have introduced the common sensor of displacement, has pointed out the fine characteristic of hall ' s sensor, put forward the basic task ; chapter two have introduced the basic operation principle of hall ' s component ; chapter three introduce hall temperature performance, electromagnetic characteristic, zero error, frequency characteristic and these parameter commonly used compensation method and hall simple application of component ; chapter four having recommended the measurement principle of the feedback servo mechanism, systematic implementation method, the experimental result has appeared, structure the mathematics model, and has analysed the error ; chapter five have pointed out the developing direction in the future while looking forward to
本文共分為五章：第一章緒論中，介紹了常見的位移傳感器，指出了霍爾傳感器的優良特性，提出了基本任務；第二章介紹了霍爾元件的基本工作原理；第三章介紹了霍爾元件的溫度性能、電磁特性、零位誤差、頻率特性以及這些參數常用的補償方法和霍爾元件的簡單應用；第四章介紹了反饋隨動機構的測量原理，系統的實現方法，給出了實驗結果，構建了數學模型，並對誤差進行了分析；第五章展望中指出了今後的發展方向。5. according to tiansha river ' s water diversion and flow strengthen project that is determined by zero - dimensional model, the plan of tidal river networks is successfully calculated
緊密結合江門市天沙河引水增流工程項目，根據零維模型確定的方案，對感潮河網進行了方案計算。Use plus, wk unassisted to produce detail cad models drawings of components assemblies
根據plus ，獨立進行詳細的cad模型製作及零部件、總成的繪圖工作。Use plus, work unassisted to produce detail cad models and drawings of components and assemblies
根據plus ，獨立進行詳細的cad模型製作及零部件、總成的繪圖工作。By end of 1998, the nominal value of derivatives transactions had happened in the official exchange within 5 years increased from 7. 7 trillion u. s. dollars to 13. 5 trillion u. s. dollars, meanwhile, the nominal value of derivative securities ( otc ) increased from 8. 7 trillion u. s. dollars to 51 trillion u. s. dollars, then, the nominal value of unliquidated derivatives was total about 64 trillion u. s. dollars, and the academic field also emerged frontier science borrowing for the financial science, physics financial science, financial engineering, etc. 1973, black and scholes put forward the differential equation that any derivative securities prices based on any non - dividend paying stock must be satisfied, that is black - scholes differential equation
Jamshidian . f在其1989年的文章中推導出零息債券的期權價格。奧托同樣在其1998年的論文中用統計物理學中的路徑積分方法推導出了基於零息債券為基礎的期權定價模型。本文在這些學者研究成果的基礎上，進行了更深層次的研究，在vasicek隨機模型的基礎上，打破上述學者及著名的black - scholes期權定價模型只能求解證券及其衍生產品價格平均值的限制，對零息債券和基於零息債券的期權的價格求解，並推導證券瞬時價格的分佈函數。分享友人